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Updated: Sep 5, 2025
09:49
Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior
Published on: April 16, 2014
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Dual counterstream architecture may support separation between vision and predictions.
Mateja Marić1, Dražen Domijan1
1University of Rijeka, Rijeka, Croatia.
Consciousness and Cognition
|July 6, 2022
Summary
Visual processing uses prediction errors between sensory data and generative models. Two parallel streams, supragranular and infragranular, compete, with one stream remaining impenetrable to cognitive influences.
Area of Science:
- Neuroscience
- Cognitive Science
- Computational Vision
Background:
- Visual processing models often assume a single pathway.
- The predictive coding framework suggests top-down influences on vision.
- Understanding the neural basis of visual perception is crucial.
Purpose of the Study:
- To review anatomical and functional data on visual processing streams.
- To propose a model of two parallel, independent visual processing streams.
- To explain how cognitive impenetrability is maintained in vision.
Main Methods:
- Review of anatomical and functional neuroimaging data.
- Analysis of feedforward and feedback projection organization.
- Theoretical modeling based on predictive coding principles.
Main Results:
- Identification of two parallel processing streams: supragranular and infragranular counterstreams.
- Supragranular stream computes surface/motion in depth based on physical regularities.
- Infragranular stream integrates vision with cognition based on learned regularities.
- These streams compete, with only one outputting to higher-order areas.
Conclusions:
- The two-stream model explains how vision can be both cognitively penetrable and impenetrable.
- The supragranular stream remains cognitively impenetrable due to its specialized function.
- This parallel processing architecture supports robust and flexible visual perception.
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